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Repeatability of PIFR in COPD participants
| First measure | Second measure | P-value | |
|---|---|---|---|
|
| |||
| R0 (N=15) | >120 (59 to >120) | >120 (72 to >120) | 0.04 |
| R2 (N=6) | 65 (65–67) | 64 (56–64) | 0.69 |
| R5 (N=14) | 38 (33–42) | 38 (28–45) | 0.46 |
Notes: All values are median (IQR). R0= zero resistance, R2= low–medium resistance, R5= high resistance. See “Materials and methods” section and Table 2 for additional explanation.
Abbreviation: PIFR, peak inspiratory flow rate.
